[cgiapp] can AUTOLOAD sub be named AUTOLOAD?
Silent
silent2600 at gmail.com
Wed Apr 16 00:16:36 EDT 2008
ples try:
sub setup{
my $self = shift;
....
....
$self->run_modes(
...
'AUTOLOAD' => \&err, # handle unknown run_mode
);
}
sub err {
my ($self, $requested_mode) = @_;
print STDERR "running AUTOLOAD\n";
return "invalid mode $requested_mode\n";
}
2008/4/16, rjmorris12 at gmail.com <rjmorris12 at gmail.com>:
>
> When creating an AUTOLOAD run mode, I wanted to name the method AUTOLOAD,
> so
> I set up my application module as:
>
>
> sub setup {
> my ($self) = @_;
> $self->run_modes([qw/mode1 mode2 AUTOLOAD/]);
> $self->start_mode("mode1");
> }
>
> sub mode1 { return "running mode1\n"; }
> sub mode2 { return "running mode2\n"; }
> sub AUTOLOAD {
> my ($self, $requested_mode) = @_;
> print STDERR "running AUTOLOAD\n";
> return "invalid mode $requested_mode\n";
> }
>
>
> However, it seems that in this case the AUTOLOAD method always runs after
> the appropriate run mode, and its second argument is undefined. For
> example:
>
>
> % ./app.pl rm=mode2
> Content-Type: text/html; charset=ISO-8859-1
>
> running mode2
> running AUTOLOAD
> Use of uninitialized value in concatenation (.) or string at
> ../lib/Credentials/App.pm line 18.
>
>
> % ./app.pl rm=foo
> running AUTOLOAD
> Content-Type: text/html; charset=ISO-8859-1
>
> invalid mode foo
> running AUTOLOAD
> Use of uninitialized value in concatenation (.) or string at
> ../lib/Credentials/App.pm line 18.
>
>
> If I name the AUTOLOAD method something else, things work as I expect:
>
>
> $self->run_modes(
> "mode1" => "mode1",
> "mode2" => "mode2",
> "AUTOLOAD" => "catchall"
> );
>
> sub catchall {
> ...
> }
>
>
> % ./app.pl rm=mode2
> Content-Type: text/html; charset=ISO-8859-1
>
> running mode2
>
>
> % ./app.pl rm=foo
> running AUTOLOAD
> Content-Type: text/html; charset=ISO-8859-1
>
> invalid mode foo
>
>
> Is this expected behavior, or is it a bug? Am I forced to name the
> AUTOLOAD
> method something other than AUTOLOAD? Is there some sort of interaction
> with
> Perl's own AUTOLOAD method?
>
> Thanks.
> Joey
>
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